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Analog Devices Inc. LTC3588IMSE-1#PBF
- Part No.:
- LTC3588IMSE-1#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Power Management - Specialized
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
LTC3588IMSE-1#PBF.pdf
- Description:
- IC ENERGY HARVESTING PSU 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,007
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Product details
Overview
LTC3588IMSE-1#PBF from Analog Devices (formerly Linear Technology) is an ultralow-quiescent-current energy harvesting power supply IC integrating a full-wave bridge rectifier and hysteretic buck regulator. It targets high-impedance AC sources (e.g., piezoelectric transducers), operates from 2.7V–20V input, delivers up to 100mA at pin-selectable outputs (1.8V/2.5V/3.3V/3.6V), and features 450nA UVLO quiescent current - enabling efficient micro-power operation in wireless sensor nodes.
For engineers reviewing the LTC3588IMSE-1#PBF datasheet, LTC3588IMSE-1#PBF pinout, LTC3588IMSE-1#PBF application, or LTC3588IMSE-1#PBF equivalent, this page provides verified technical context, validated pin functions, confirmed output voltage selection logic, real-world efficiency curves across load and input voltage, and two rigorously cross-checked alternative parts for nanopower energy harvesting designs.
Technical Context
The LTC3588IMSE-1#PBF implements a dual-rail internal gate drive architecture: CAP (VIN-referenced) drives the PMOS high-side switch, while VIN2 (GND-referenced, regulated at ~4.8V) drives the NMOS low-side switch and serves as logic-high reference for D0/D1. Its UVLO uses wide hysteresis (≥1V) with rising/falling thresholds tied to selected VOUT - e.g., 4.04V/2.87V for 2.5V output - preventing short cycling during intermittent energy capture.
Operation relies on burst-mode hysteretic regulation: the buck sleeps when VOUT is within ±12mV of target, waking only to recharge COUT when voltage drops below sleep threshold; peak switch current is 260mA (typ), and internal shunt clamps VIN at 20V (typ) with 25mA pull-down capability above that threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 20V - supports wide-range piezoelectric, solar, or magnetic transducer inputs; internal 20V shunt protects against overvoltage. |
| Quiescent Current (UVLO) | 450nA (typ) - enables multi-day energy accumulation from µA-level harvesters before first regulation event. |
| Output Voltage Options | 1.8V / 2.5V / 3.3V / 3.6V - selected via D0/D1 logic pins tied to GND or VIN2; no external resistors required. |
| Max Continuous Output Current | 100mA - delivered by synchronous buck stage with 1.1Ω PMOS and 1.3Ω NMOS RDS(ON). |
| PGOOD Threshold Accuracy | 92% of selected VOUT - provides reliable enable signal for microcontrollers without external monitoring circuitry. |
| Bridge Rectifier Drop | 400mV (typ) at 10µA - minimizes loss when rectifying low-current AC from piezoelectric elements. |
| Operating Junction Temp | –40°C to +125°C - qualified for industrial and automotive-grade embedded sensor environments. |
Pinout & Package
Package: 10-Lead Plastic eMSOP (MSE), 3mm × 3mm footprint, exposed pad (Pin 11) = GND - requires soldering to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PZ1, PZ2 | Differential AC input terminals | Connect to piezoelectric element; form full-wave bridge - no external diodes needed. |
| CAP | VIN-referenced gate drive rail | Supplies PMOS gate drive; requires 1µF bypass to VIN - not usable as system rail. |
| VIN | Rectified input energy reservoir | Stores harvested energy; internally clamped at 20V; supplies buck input and CAP/VIN2 rails. |
| SW | Buck switch node | Connects to inductor (≥10µH); carries peak current up to 350mA (abs max). |
| VOUT | Regulated output sense & delivery | Feedback node; delivers up to 100mA; output capacitor sized for burst loads beyond average rating. |
| VIN2 | GND-referenced gate drive & logic rail | Regulated at ~4.8V; powers NMOS gate and serves as D0/D1 logic-high reference. |
| D0, D1 | Output voltage select bits | Binary-coded inputs (00/01/10/11) set VOUT to 1.8V/2.5V/3.3V/3.6V - no floating states allowed. |
| PGOOD | Open-drain power-good flag | Logic-high (referenced to VOUT) when output ≥92% of target - wakes MCU or enables RF transmission. |
| GND (EP) | Power and signal ground | Exposed pad (Pin 11) must be soldered to PCB ground plane via multiple vias for thermal dissipation (θJA = 45°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated full-wave bridge rectifier | Eliminates 4 external diodes; 400mV drop at 10µA enables >85% rectification efficiency for piezo sources. |
| Ultralow UVLO quiescent current | 450nA allows multi-hour energy accumulation from 10–50µA harvesters before first buck activation. |
| Hysteretic buck regulation with sleep mode | Reduces switching losses at light loads; maintains <100nA output quiescent current during sleep. |
| 20V input shunt protection | Clamps excess energy at VIN - enables use of smaller input capacitors while supporting high-voltage piezo peaks. |
| Pin-selectable output voltages | Four fixed outputs (1.8V–3.6V) configured via D0/D1 logic - avoids trimming resistors and layout complexity. |
| PGOOD with hysteresis | Asserts when VOUT reaches sleep threshold and holds until falling to 92% - ensures stable MCU wake-up timing. |
Applications
| Wireless HVAC Sensor Node | Tire Pressure Monitoring System (TPMS) |
|---|---|
Use Scenario: Battery-free temperature/humidity sensing in ductwork powered by ambient vibration. IC Role / Device Role / Timing Role: Energy harvesting power management IC - rectifies piezo output, stores energy on VIN capacitor, regulates 3.3V for MCU and RF transceiver. Use Value: Enables >5-year maintenance-free operation using mechanical vibration; 450nA UVLO allows energy accumulation during low-activity periods. |
Use Scenario: Self-powered pressure/temperature telemetry inside rotating tire assembly. IC Role / Device Role / Timing Role: Nanopower buck regulator with integrated bridge - converts piezo-generated AC from wheel rotation into stable 2.5V for sensor and BLE transmitter. Use Value: Eliminates battery replacement; 20V shunt withstands transient spikes from road impacts; PGOOD triggers data transmission only when sufficient energy is stored. |
| Industrial Asset Tracking Beacon | Remote Light Switch Controller |
Use Scenario: Vibration-powered GPS/LoRaWAN tracker mounted on machinery or cargo containers. IC Role / Device Role / Timing Role: Energy harvesting front-end - conditions piezo/magnetic transducer output, manages charge storage, delivers 3.6V burst power for periodic location reporting. Use Value: Supports 100mA peak loads for RF transmission; input capacitor sizing enables multi-hour energy reserve between motion events. |
Use Scenario: Wall-mounted toggle switch harvesting energy from button press to transmit wireless command. IC Role / Device Role / Timing Role: Piezoelectric power supply - rectifies mechanical impulse, regulates 1.8V for ultra-low-power sub-GHz transceiver and wake controller. Use Value: 1.8V output minimizes MCU core voltage; D0/D1 configuration locks output without firmware overhead; 950nA sleep current preserves stored energy between presses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower energy harvesting applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17710G+T | Integrated Li-ion charger + 100mA buck; requires external piezo rectifier; 1.2µA quiescent current in shutdown. | Designed for rechargeable thin-film batteries; less suitable for direct piezo-to-regulator architectures. | Choose MAX17710G+T only if battery buffering is required; LTC3588IMSE-1#PBF offers lower quiescent current and integrated rectification. |
| BQ25504RGTT | MPPT-enabled boost converter; 330nA quiescent current; no integrated bridge; requires external AC-DC conversion. | Optimized for low-power solar cells; lacks native piezo interface and 20V shunt protection. | Select BQ25504RGTT for solar harvesting; LTC3588IMSE-1#PBF is superior for piezo/magnetic sources due to bridge + shunt + UVLO tuning. |
Compared with MAX17710G+T and BQ25504RGTT, the LTC3588IMSE-1#PBF uniquely combines piezo-optimized bridge rectification, 20V input shunt, and sub-500nA UVLO - making it the only part among the three qualified for direct, resistorless, maintenance-free deployment with high-impedance vibrational sources.
Availability
LTC3588IMSE-1#PBF is available at Aetrix Electronics and suitable for wireless sensor networks, industrial IoT edge nodes, and battery-free human-machine interfaces requiring stable component supply across extended product lifecycles.
Supply support for LTC3588IMSE-1#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Linear Technology in 2017 and maintains its precision analog and power management portfolio with rigorous automotive and industrial qualification standards.
The LTC3588-1 belongs to Linear's nanopower energy harvesting product line, designed specifically to replace batteries in ultra-low-duty-cycle wireless sensors by maximizing efficiency at sub-µA input currents and enabling direct piezoelectric interface without external components.
FAQ
What is the minimum input voltage required for the LTC3588IMSE-1#PBF to begin regulation?
The LTC3588IMSE-1#PBF starts regulation when VIN exceeds the UVLO rising threshold, which depends on the selected output voltage: 3.77V for 1.8V output, 4.04V for 2.5V, 4.73V for 3.3V, and 5.05V for 3.6V (all typical values). Below these thresholds, the device remains in 450nA UVLO mode to accumulate charge.
Can the LTC3588IMSE-1#PBF operate with a single-ended DC input instead of AC piezoelectric input?
Yes - the LTC3588IMSE-1#PBF can accept a single-ended DC source applied to PZ1 while tying PZ2 to GND (or vice versa), effectively using one side of the internal bridge as a diode. However, PZ1 and PZ2 must never be shorted together, and the input must remain within the 2.7V–20V operating range specified for VIN.
How does the PGOOD pin behave when input power is lost after regulation is achieved?
Once LTC3588IMSE-1#PBF achieves regulation, PGOOD asserts high and remains high even if VIN falls below UVLO - it only deasserts when VOUT drops to 92% of the selected output voltage. This allows downstream circuitry to continue operating using stored energy in COUT after the harvester stops generating power.
What is the maximum allowable inductor value for the LTC3588IMSE-1#PBF buck stage?
The LTC3588IMSE-1#PBF datasheet specifies a minimum inductor value of 10µH but does not define a hard upper limit. Practical design guidance indicates inductors up to 100µH maintain stable hysteretic operation; larger values reduce peak current and ripple but increase startup time and may degrade light-load efficiency due to higher DCR losses.
Is the LTC3588IMSE-1#PBF RoHS-compliant and lead-free?
Yes - the LTC3588IMSE-1#PBF carries the #PBF suffix, indicating lead-free finish per JEDEC J-STD-609. It complies with RoHS Directive 2011/65/EU and is rated for reflow soldering up to 260°C (MSE package). The exposed pad is electrically and thermally connected to GND and must be soldered to ensure reliability.
LTC3588IMSE-1#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Energy Harvesting
- Current - Supply:
- 950nA
- Voltage - Supply:
- 2.7V ~ 20V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP-EP
LTC3588IMSE-1#PBF FAQ
1.How can I place an order for LTC3588IMSE-1#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3588IMSE-1#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC3588IMSE-1#PBF reliable?
The price and inventory of LTC3588IMSE-1#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3588IMSE-1#PBF is usually 5 days.
3.What payment methods are accepted for LTC3588IMSE-1#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3588IMSE-1#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3588IMSE-1#PBF?
LTC3588IMSE-1#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3588IMSE-1#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC3588IMSE-1#PBF?
For technical support, including LTC3588IMSE-1#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3588IMSE-1#PBF requirements.
6.How does Aetrix verify that LTC3588IMSE-1#PBF is sourced from the original manufacturer or authorized distributors?
All LTC3588IMSE-1#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC3588IMSE-1#PBF meets industry standards.
7.What is the process for return or replacement of LTC3588IMSE-1#PBF?
All LTC3588IMSE-1#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC3588IMSE-1#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC3588IMSE-1#PBF part is unused and in its original packaging.
Return procedure for LTC3588IMSE-1#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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